| 摘要 |
A device is presented which automatically controls the interaction of a medium (2) with an external environment (21), the temperature of which varies or remains constant. In addition to the medium, the device includes a mechanism for providing constant effectiveness of the medium in the external environment, and an automatic drive mechanism (3) which drives the mechanism for providing constant effectiveness of the medium in the external environment. Advantageously, the device includes a receptacle (18) for the medium, and the receptacle includes a housing (1) incorporating the mechanism for providing constant effectiveness of the medium in the external environment, which is beneficially a movable vent or an expandable vent. The automatic drive mechanism is advantageously a temperature-responsive member or a temperature-responsive fluid movement device. The temperature-responsive member, which manifests variations in the surface area thereof as the temperature thereof is raised, is beneficially one of the following: a linear spring, a spiral metallic spring, a multi-metallic spring, a polymeric spring, or a pop spring. A preferred embodiment of the device includes at least one static vent (6) positioned within the housing in alignment with at least one movable vent positioned therein, and the at least one movable vent is driven by the automatic drive mechanism (3) to move in relation to the at least one static vent, thereby providing constant effectiveness of the medium in the external environment by affording varying exposure thereof as the temperature of the external environment (21) varies.
|
